Items of interest from Fukushima including - Wall nearly 100 feet tall to be built underground at Fukushima Daiichi to prevent further spread of radioactive contamination — Construction begins tomorrow, ends June 2014 (PHOTOS)

http://fukushima-diary.com/2012/04/air-pressure-is-increasing-in-container-vessel-of-reactor-2/

Air pressure is increasing in container vessel of reactor 2

Posted by Mochizuki on April 24th, 2012 · No Comments

Air pressure of container vessel at reactor 2 has been increasing since 3/27/2012.

2号機の格納容器圧力が3/27から上昇しています。

Tepco assumes it is because the suction air system is not fully functioning.

東電は原因として内部のガスの吸出し機能に支障があることを推測しており

At 11:59 of 4/24/2012, Tepco increased air exhausting amount from 17 m3/h to 38 m3/h.

4/24 11:59、原子炉 格納容器ガス管理システムの排気流量を約 17ｍ３／ｈから約 38ｍ３／ｈへ調整しました。

(kPag)

and.....

http://enenews.com/wall-100-feet-tall-be-built-underground-fukushima-daiichi-tepco-trying-prevent-contamination-ocean-construction-begins-tomorrow-ends-june-2014-photos

Title: Commencement of Water Shielding Wall Construction
Source: Tepco Press Release
Date: Apr 24,2012

The water shielding wall will be installed in front of the existing seawalls of Units 1 to 4 to prevent further contamination of the ocean due to the leakage of ground water, for which we have conducted preparatory including geological survey per measurement and boring inspection thus far.
(Previously announced on October 26, 2011)

As a license to landfill publicly-owned seawater surface is required to install the water shielding wall, we have applied for the license to Fukushima Prefecture on February 7, 2012. Since the necessary investigation procedures have been finished and the license was issued by Fukushima Prefecture on April 20, 2012, we will start construction of the water shielding wall from April 25.

Appendix: Outline of Water Shielding Wall Installation (PDF 136KB)

Outline

Even though we are making utmost efforts to prevent the water accumulated within the buildings of Units 1 to 4 from leaking into the groundwater, we are planning to install a water shielding wall of steal sheet pile having enough impermeability in front of the existing seawalls of Units 1 to 4, just in case of the accumulated water leaking in to the ground water to prevent further contamination of the ocean.